An update.
Thanks to Burgundymog I contacted Cain and he sourced the right Aeroquip clamp from Morgan. The clamp comes with a new doughnut that fits between the two pipe ends.
Its not cheap at circa £60. Apparently the reason the Part number does not appear in Aeroquip catalogues is because it is bespoke made for Morgan! .
Only Morgan could get an exhaust clamp "custom" made for a bl**dy exhaust pipe! Cain was super helpful and I hope to have clamp by end of week.
He advised that general exhaust V clamps (of which I have ordered two variants at about £8 each) are not appropriate because of the profile of the joint/doughnut.
Anyway, to fit the clamp and doughnut the exhaust connection has to be separated so that doughnut and clamp camp be inserted/ fitted. This entails undoing the probably very seized/corroded U Bolts holding the exhaust to allow the Silencer/tailpipe to move rearwards.
I have a fear that it will be one of those jobs that I start and end up with seized components, wont have replacements to hand, and a clamp replacement becomes a nightmare. So............
The plan is to get clamp drive caitiously to an Exhaust fitter workshop and get them to do it.
I will let you know how it goes and total cost.
As an aside Cain also highlighted that these clamps are in short supply.
Ian
Good to know where to get them. I was doing a bit of preventative maintenance at the weekend and removed the clamp to find the "donut" with a fair amount of rust on it. Painted on some rust converter so hopefully that'll prevent it from worsening. Need to check the other side now and do the same.